package com.sky.service.impl;

import com.sky.context.BaseContext;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.ShoppingCart;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.ShoppingCartService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class ShoppingCartServiceImpl implements ShoppingCartService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private DishMapper dishMapper;
    @Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        // 创建一个购物车对象
        ShoppingCart shoppingCart = new ShoppingCart();
        // 将DTO拷贝到购物车对象
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        // 获取当前操作用户ID
        shoppingCart.setUserId(BaseContext.getCurrentId());
        // 条件查询
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        System.out.println(list);
        if (list != null && list.size() == 1){
            shoppingCart = list.get(0);
            shoppingCart.setNumber(shoppingCart.getNumber()+1);
            shoppingCartMapper.updateNumberById(shoppingCart);
        }else {
            Long dishId = shoppingCartDTO.getDishId();
            if (dishId != null){
                Dish dish = dishMapper.getById(dishId);
                shoppingCart.setName(dish.getName());
                shoppingCart.setImage(dish.getImage());
                shoppingCart.setAmount(dish.getPrice());
            }else {
                Setmeal setmeal = setmealMapper.getById(shoppingCartDTO.getSetmealId());
                shoppingCart.setName(setmeal.getName());
                shoppingCart.setImage(setmeal.getImage());
                shoppingCart.setAmount(setmeal.getPrice());
            }
            shoppingCart.setNumber(1);
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartMapper.insert(shoppingCart);
        }
    }
    /*@Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart = new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        System.out.println(BaseContext.getCurrentId());
        shoppingCart.setUserId(BaseContext.getCurrentId());
        ShoppingCart list = shoppingCartMapper.getByCondition(shoppingCart);
        if (list != null){
            list.setNumber(list.getNumber()+1);
            shoppingCartMapper.updateNumberById(shoppingCart);
        }else {
            Long dishId = shoppingCartDTO.getDishId();
            list = new ShoppingCart();
            list.setCreateTime(LocalDateTime.now());
            list.setUserId(BaseContext.getCurrentId());
            list.setNumber(1);
            if (dishId != null){
                Dish dish = dishMapper.getById(dishId);
                list.setName(dish.getName());
                list.setImage(dish.getImage());
                list.setAmount(dish.getPrice());
                list.setDishId(dishId);
                list.setDishFlavor(shoppingCart.getDishFlavor());
            }else {
                Setmeal setmeal = setmealMapper.getById(shoppingCartDTO.getSetmealId());
                list.setName(setmeal.getName());
                list.setImage(setmeal.getImage());
                list.setAmount(setmeal.getPrice());
                list.setSetmealId(shoppingCart.getSetmealId());
            }
            shoppingCartMapper.insert(shoppingCart);
        }
    }*/

    @Override
    public List<ShoppingCart> list() {

        return shoppingCartMapper.getByUserId(BaseContext.getCurrentId());
    }

    @Override
    public void clean() {
        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());
    }

}
